Portable folding chair



FIG. 1 is a perspective view of a portable folding chair showing our newdesign;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side view in elevation thereof;

FIG. 5 is a right side view in elevation thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a rear elevational view thereof.

The ornamental design for a portable folding chair, as shown anddescribed.